42Crunch API Protection

Browse: 🏠 · Solutions · Connectors · Methods · Tables · Content · Parsers · ASIM Parsers · ASIM Products · Logic Apps · 📊

↑ Back to Solutions Index

Attribute	Value
Publisher	Microsoft Corporation
Support Tier	Microsoft
Support Link	https://support.microsoft.com
Categories	Security - Threat Protection
Version	3.0.3
Author	42Crunch - plugins@42crunch.com
First Published	2022-09-21
Last Updated	2026-07-29
Solution Folder	42Crunch API Protection
Marketplace	Azure Marketplace · Popularity: 🟡 Low (28%)

The 42Crunch API Protection solution protects APIs by installing a microfirewall inline with the API server. Access logs from the microfirewall are emitted to Microsoft Sentinel allowing analysis and investigation of attacks.

Data Connectors
Tables Used
Content Items

Data Connectors

This solution provides 2 data connector(s):

🔶 CLv1: This connector ingests into a table that uses the legacy Custom Log V1 schema format with type-suffixed column names (e.g. _s, _d, _b, _t, _g). Note: identification is based on column name suffixes which are also permitted in CLv2, so this classification may not always be accurate.

Tables Used

This solution uses 2 table(s):

Table	Used By Connectors	Used By Content
`FortyTwoCrunchAPIProtectionV2_CL`	42Crunch API Protection (Push Connector via Codeless Connector Framework)	Analytics, Workbooks
`apifirewall_log_1_CL` 🔶	API Protection	Analytics, Workbooks

🔶 CLv1: This table uses the legacy Custom Log V1 schema format with type-suffixed column names (e.g. _s, _d, _b, _t, _g). Note: identification is based on column name suffixes which are also permitted in CLv2, so this classification may not always be accurate.

Content Items

This solution includes 13 content item(s):

Content Type	Count
Analytic Rules	11
Workbooks	1
Parsers	1

Analytic Rules

Name	Severity	Tactics	Tables Used
API - API Scraping	High	Reconnaissance, Collection	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Account Takeover	High	CredentialAccess, Discovery	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Anomaly Detection	Low	Reconnaissance	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - BOLA	Medium	Exfiltration	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Invalid host access	Low	Reconnaissance	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - JWT validation	Low	InitialAccess, CredentialAccess	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Kiterunner detection	Medium	Reconnaissance, Discovery	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Password Cracking	High	CredentialAccess	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Rate limiting	Low	Discovery, InitialAccess	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Rate limiting	Medium	Impact	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`
API - Suspicious Login	High	CredentialAccess, InitialAccess	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`

Workbooks

Name	Tables Used
42CrunchAPIProtectionWorkbook	`FortyTwoCrunchAPIProtectionV2_CL` `apifirewall_log_1_CL`

Parsers

Name	Description	Tables Used
FortyTwoCrunchAPIProtection	-	`FortyTwoCrunchAPIProtectionV2_CL` (read) `apifirewall_log_1_CL` (read)

Release Notes

Version	Date Modified (DD-MM-YYYY)	Change History
3.0.3	27-07-2026	Promoted the connector to GA Renamed CCF Push Data Connector files (ConnectorDefinition, DCR, PollerConfig) in the `42Crunch_CCF` folder to follow the standard CCF naming convention. Added Parser alias function (`FortyTwoCrunchAPIProtectionV2`) for the V2 table.
3.0.2	15-07-2026	Update publisher and support information in SolutionMetadata.json
3.0.1	25-05-2026	Added CCF Push Data Connector (OAuth2/Entra ID via DCE/DCR) alongside legacy connector; added backward-compatible Parser (`FortyTwoCrunchAPIProtection`) supporting both `apifirewall_log_1_CL` and `FortyTwoCrunchAPIProtectionV2_CL` schemas. Updated all 11 Analytic Rules to use the parser alias and PascalCase column names, added Migration Guide with end-to-end validated `ccf-forwarder` sample deployment, and refreshed Workbook metadata.
3.0.0	15-07-2024	Missing Tactics and Techniques added